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|ID||Project||Category||View Status||Date Submitted||Last Update|
|0001972||Kdenlive||Rendering||public||2011-01-07 16:00||2011-01-15 10:36|
|Product Version||Recent git|
|Target Version||Fixed in Version|
|Summary||0001972: can't adjust pixel aspect ratio (PAR) for PNG title images|
|Description||My DV video has 720x576 pixels; kdenlive applies a PAR of 1.066667 to compensate the non-rectangular pixels of a normal television screen, which gives 768x576 pixels on my laptop screen. To avoid distortions, I want to compute title images at 720x576 also – the font rasterizer produces better results if it renders for different X and Y resolutions instead of squeezing the horizontal axis later on.|
However, kdenlive apparently doesn't like this approach; it seems that I can't specify a PAR for PNG images.
|Tags||No tags attached.|
|Build/Install Method||Manual build from SVN|
If I am correct, the best way to make it work in Kdenlive / MLT is to make your title images using a 768x576 resolution.
However I agree that being able to modify the aspect ratio of a picture can be useful, I sent a patch on MLT's mailing list to fix that.
Thanks. 768x576 works fine, but it isn't exactly what I want.
As soon as your patch is in git, I'll test it.
Using kdenlive commit b4b82a1b and mlt commit c2e97113, I can now set the aspect ratio for PNG images. However, it still doesn't work as expected, unfortunately: If I render a project, 720x576 titles scaled with an aspect ratio 4:3 are shifted to the left in the output video.
Note that I'm not happy that I have to set the aspect ratio at all. From a conceptual point of view, it's the wrong action, I believe. I would really like to change the PAR, similar to ordinary DVs.
|2011-01-07 16:00||lemzwerg||New Issue|
|2011-01-07 23:19||j-b-m||Note Added: 0006304|
|2011-01-07 23:19||j-b-m||Assigned To||=> j-b-m|
|2011-01-07 23:19||j-b-m||Status||new => feedback|
|2011-01-08 10:55||lemzwerg||Note Added: 0006307|
|2011-01-08 10:55||lemzwerg||Status||feedback => assigned|
|2011-01-15 10:36||lemzwerg||Note Added: 0006321|
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